ARP Case Bolts for EJ engines Shortblocks Block Machining for Outfront Motorsports

Block Machining for Outfront Motorsports ½” Head Studs (Studs Are Additional)

Stage1 87+ Oct

Subaru Impreza 1

2012 Subaru Impreza WRX Premium 2

Long nose= Left Side

ARP Case Bolts for EJ engines Shortblocks Block Machining for Outfront MotorsportsCase studs are required when all out performance is the goal, it tightens the crankshaft cavity from opening up or the case halves shifting, both which can lead to premature bearing or crankshaft wear, loss of oil pressure or catastrophic failure. Anytime case bolts are introduced to the case, a line bore or line hone is required as the higher recommended bolt torque egg shapes the current bore. This is a great time to upgrade to pinning the mains